[OpenAFS-devel] cmdebug reporting what?

[Jeffrey Hutzelman]

On Friday, September 02, 2005 17:54:39 +0200 Harald Barth <haba@pdc.kth.se> 
wrote:

>
> This is related to the big cache discussions...
>
># /usr/afsws/bin/cmdebug ketchup.stacken.kth.se 7001  -cache
> Chunk files:   1000000
> Stat caches:   150000
> Data caches:   100000
> Volume caches: 250
> Chunk size:    262144
> Cache size:    20000000 kB
> Set time:      no
> Cache type:    disk
>
> Okej, now let's count cache entries:
>
># /usr/afsws/bin/cmdebug ketchup.stacken.kth.se 7001  -long | grep Cache\
># entry | wc
>    10000   80000  716245
>
> Exact 10000? Shouldn't that be more or is there a tuning parameter I have
> missed? Or is cmdebug not telling me all?

cmdebug makes a separate RPC to fetch each entry, by number.  You will 
never see more than 10000 entries, because that's the number that cmdebug 
tries; it's hardcoded.  You'll need to build a version of cmdebug with a 
bigger constant (in PrintCacheEntries32() or PrintCacheEntries64()), or 
else change it to use the count returned by the cache manager.

-- Jeff